Using a mobile phone does not increase the risk of developing brain cancer, a new report has shown.

Length of phone use and the three most common types of brain tumour are not linked, researchers claimed.

No connection could be made even though the study was the first to investigate the effects of phone radiation on different areas of the brain.

The findings are the latest in a growing volume of evidence ruling out a link between mobile phones and cancer.

In the new study, researchers assessed the level of phone radiation and the hours of use each day for 322 brain cancer patients and 683 healthy volunteers before checking the brain areas most likely to be affected.

They found regular use of the devices did not significantly affect the risk of developing glioma, meningioma or pituitary adenoma.

Lead researcher Prof Naohito Yamaguchi, of Tokyo Women’s Medical University in Japan, said: ‘Using Newsour newly developed and more accurate techniques, we found no association between mobile phone use and cancer.’

But charity Cancer Research UK warned the long-term effects were still unknown as people had been using mobiles intensively for only about ten years.

Dr Lesley Walker, director of cancer information, said: ‘So far, studies have shown no evidence that mobile use is harmful but research is still ongoing.’

The Government recommends exercising caution by keeping call times short.